WO2007077879A1 - Agent d’enrobage - Google Patents

Agent d’enrobage Download PDF

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Publication number
WO2007077879A1
WO2007077879A1 PCT/JP2006/326082 JP2006326082W WO2007077879A1 WO 2007077879 A1 WO2007077879 A1 WO 2007077879A1 JP 2006326082 W JP2006326082 W JP 2006326082W WO 2007077879 A1 WO2007077879 A1 WO 2007077879A1
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WO
WIPO (PCT)
Prior art keywords
water
coating agent
resin
coating
component
Prior art date
Application number
PCT/JP2006/326082
Other languages
English (en)
Japanese (ja)
Inventor
Kazunori Kitawaki
Original Assignee
Sk Kaken Co., Ltd.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sk Kaken Co., Ltd. filed Critical Sk Kaken Co., Ltd.
Priority to JP2007524103A priority Critical patent/JP4085399B2/ja
Priority to CN2006800491990A priority patent/CN101346445B/zh
Priority to US12/158,475 priority patent/US8143342B2/en
Publication of WO2007077879A1 publication Critical patent/WO2007077879A1/fr
Priority to HK09103174.3A priority patent/HK1123822A1/xx

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D133/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Coating compositions based on derivatives of such polymers
    • C09D133/04—Homopolymers or copolymers of esters
    • C09D133/06—Homopolymers or copolymers of esters of esters containing only carbon, hydrogen and oxygen, the oxygen atom being present only as part of the carboxyl radical
    • C09D133/08—Homopolymers or copolymers of acrylic acid esters
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
    • C09D5/02—Emulsion paints including aerosols
    • C09D5/024—Emulsion paints including aerosols characterised by the additives
    • C09D5/028—Pigments; Filters
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D133/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Coating compositions based on derivatives of such polymers
    • C09D133/02—Homopolymers or copolymers of acids; Metal or ammonium salts thereof
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D183/00—Coating compositions based on macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon, with or without sulfur, nitrogen, oxygen, or carbon only; Coating compositions based on derivatives of such polymers
    • C09D183/04—Polysiloxanes
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L33/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides or nitriles thereof; Compositions of derivatives of such polymers
    • C08L33/02—Homopolymers or copolymers of acids; Metal or ammonium salts thereof
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L75/00—Compositions of polyureas or polyurethanes; Compositions of derivatives of such polymers
    • C08L75/04—Polyurethanes
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L83/00—Compositions of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon only; Compositions of derivatives of such polymers

Definitions

  • the present invention relates to a novel coating agent.
  • the coating agent is a novel coating agent.
  • the coating agent is a novel coating agent.
  • Water-based paint compositions Water-based ink compositions, and the like.
  • water-repellent paints are known as materials for imparting waterproofness, antifouling properties, etc. to the surface of buildings, civil engineering structures, and the like.
  • water-repellent paints include those containing fluorine resin, and the coating film surface formed from these has a high contact angle with water and repels water by reducing the contact area with water. It is possible to provide waterproofing and pollution prevention.
  • Patent Document 1 describes an aqueous paint obtained by blending a specific aqueous water-repellent agent with a water-based aqueous resin liquid.
  • the water-based paint as in Patent Document 1 can repel water to some extent, but water droplets may remain on the surface of the coating film. If such water droplets evaporate as they are, there is a risk of causing spots and the like.
  • the water repellent effect is deactivated during storage of the paint, and the desired water repellent performance may not be exhibited during use. Furthermore, the water-repellent effect may be lost over time after the coating film is formed.
  • Patent Document 1 Japanese Patent Application Laid-Open No. 2003-301139
  • the present invention has been made in view of the above problems, and suppresses a decrease in the water repellency effect during storage of a coating agent such as a paint or after the formation of a coating film, thereby providing excellent water repellency.
  • the object is to obtain a coating agent that can be stably exerted.
  • Means for solving the problem [0007]
  • the present inventors have found that a synthetic resin emulsion in which specific acrylic resin and silicone resin are mixed in the emulsion particles, a specific average particle diameter and an oil absorption amount.
  • the present invention has been completed by conceiving a coating agent in which the granular material having the above-mentioned components is an essential component and the pigment volume concentration of the granular material is set in a specific range.
  • the present invention has the following features.
  • Acrylic resin having (meth) acrylic acid alkyl ester as a main monomer component and a silicone resin having cyclic siloxane compound as a main monomer component are 99: 1 to 30:70.
  • the essential component is a synthetic resin emulsion (A) mixed in emulsion particles at a weight ratio of 0.5 and an average particle diameter of 0.5 to 500 / ⁇ ⁇ and an oil absorption of 60 mlZl00g or less.
  • a coating agent characterized in that the pigment volume concentration of the body (B) is 10 to 90%.
  • Acrylic resin containing (meth) acrylic acid alkyl ester as the main monomer component and a silicone resin containing cyclic siloxane compound as the main monomer component are 99: 1 to 30:70.
  • the coating agent according to any one of the above.
  • the coating agent of the present invention exhibits excellent water repellency even after long-term storage. Furthermore, the initial water-repellent effect can be maintained in the formed coating film. Therefore, according to the coating agent of the present invention, excellent water repellency can be stably obtained, and advantageous effects can be obtained even in terms of waterproofness and anti-contamination properties.
  • the synthetic resin emulsion (A) (hereinafter referred to as "component (A)”) in the coating agent of the present invention is an acrylic resin derived from (meth) acrylic acid alkyl ester, and a cyclic siloxane compound.
  • the derived silicone resin is mixed in the emulsion particles.
  • the form of the acrylic resin and the silicone resin in the component (A) is not particularly limited and may be a uniformly mixed form, but a form separated from each other by a sea-island structure or the like is preferable.
  • the acrylic resin derived from the (meth) acrylic acid alkyl ester in the present invention refers to the (meth) acrylic acid alkyl ester as the main monomer component (with respect to all monomers constituting the acrylic resin). Weight percent or more, preferably 40 weight percent or more, more preferably 50 weight percent or more, and still more preferably 70 weight percent or more).
  • the silicone resin derived from the cyclic siloxane compound in the present invention refers to the cyclic siloxane compound as a main monomer component (50% by weight or more based on the total monomers constituting the silicone resin, preferably Means 60% by weight or more, more preferably 70% by weight or more).
  • the weight ratio of acrylic resin to silicone resin in component (A) is usually 99: 1 to 30:70, preferably 97: 3 to 40:60, more preferably 95: 5 to 50:50. It is. By mixing both components in such a ratio, a coating agent having both physical properties such as water repellency, film-forming property and crack prevention property can be obtained. [0021] Such a component (A) imparts excellent water repellency to the formed coating film of the coating agent of the present invention. In addition, in the present invention, by using such component (A) as a binder, the deactivation of the water-repellent effect during storage of the coating agent is suppressed. The initial water repellent effect can be maintained over a long period of time.
  • coating agents include water-based paints
  • amphiphilic components such as surfactants, and water repellents such as silicone resin are disposed in the coating agent.
  • amphiphilic components tend to inhibit the water repellent effect inherent in the water repellent.
  • the water repellent agent may be detached over time in the formed coating film, and the water repellent effect may be impaired.
  • the present invention by using the component (A) as described above as a binder, the water-repellent performance after the coating film is formed during storage of the coating agent (including water-based paint) is stored. The decrease can be sufficiently suppressed.
  • the acrylic resin constituting the component (A) is a polymer containing a (meth) acrylic acid alkyl ester as a main component, and is copolymerized with other monomers as necessary.
  • (meth) acrylic acid alkyl esters include methyl (meth) acrylate, ethyl (meth) acrylate, isopropyl (meth) acrylate, n-butyl (meth) acrylate, isobutyl (meth) acrylate, t-Butyl (meth) acrylate, n-amyl (meth) acrylate, isoamyl (meth) acrylate, n-hexyl (meth) acrylate, 2-ethyl hexyl (meth) acrylate, octyl (meta ) Atarylate, Decyl (meth) acrylate, Dodecyl (meth) acrylate, Octadecyl (meth) acrylate,
  • the amount of such (meth) acrylic acid alkyl ester used is usually 30% by weight or more, preferably 40 to 99.9% by weight, more preferably 50 to 99%, based on all monomers constituting component (A). 5% by weight, more preferably 70-99.5% by weight.
  • Examples of other monomers include carboxyl group-containing monomers, amino group-containing monomers, pyridine-based monomers, hydroxyl group-containing monomers, nitrile group-containing monomers, amide group-containing monomers, epoxy group-containing monomers, and carbocycle groups. And a monomer containing an alkoxysilyl group and an aromatic monomer.
  • the amount of these monomers used is (A) Relative to the total monomers constituting the component, typically from 0.1 to 60 wt%, preferably from 0.5 to 50 wt%, more preferably from 0.5 to 30 weight 0/0.
  • the stability of the component (A) can be increased, and a compound capable of reacting with the carboxyl group is further added. By adding it separately, various physical properties of the coating film can be improved.
  • the carboxyl group-containing monomer include acrylic acid, methacrylic acid, crotonic acid, maleic acid or a monoalkyl ester thereof, itaconic acid or a monoalkyl ester thereof, fumaric acid or a monoalkyl ester thereof. Of these, one or more selected from acrylic acid and methacrylic acid are particularly suitable.
  • the amount of the carboxyl group-containing monomer is usually 0.1 to 40% by weight, preferably 0.5 to 20% by weight, based on all monomers constituting the component (A).
  • the silicone resin in component (A) is obtained by polymerizing a cyclic siloxane compound.
  • the cyclic siloxane compound include hexamethylcyclotrisiloxane, otamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, and the like.
  • a linear siloxane compound, a branched siloxane compound, an alkoxysilane compound, etc. can be used, and a polymerization catalyst can be used as appropriate. it can.
  • a silane compound having one or more alkoxyl groups in the molecule can be used, for example, tetramethoxysilane, methyltrimethoxysilane, dimethyldimethoxysilane, etc.
  • Silane coupling agents such as methoxysilane, ⁇ - (meth) ataryloxypropyltrimethoxysilane, and 3-mercaptopropyltrimethoxysilane can be used.
  • the component ( ⁇ ⁇ ) in the present invention is a synthetic resin emulsion in which an acrylic resin and a silicone resin are mixed as described above, and it is preferable that the silicone resin is present at least in the surface layer of the emulsion particles. .
  • acrylic resin and silicone as described above.
  • a multilayer synthetic resin emulsion (A-1) (hereinafter referred to as “component (A-1)”) in which the glass transition temperature of acrylic resin is set low is suitable.
  • the weight ratio of the outer layer to the inner layer is usually 80:20 to 20:80, preferably 70:30 to 30:70.
  • Such a component (A-1) is, for example, a method of synthesizing an acrylic resin constituting the inner layer by emulsion polymerization and then synthesizing an acrylic resin and a silicone resin constituting the outer layer by emulsion polymerization.
  • a component (A-1) is, for example, a method of synthesizing an acrylic resin constituting the inner layer by emulsion polymerization and then synthesizing an acrylic resin and a silicone resin constituting the outer layer by emulsion polymerization.
  • the silicone resin as described above may be included as the resin constituting the inner layer.
  • the inclusion of silicone resin in the inner layer can improve crack prevention and the like.
  • the glass transition temperature (hereinafter referred to as "Tg") of the acrylic resin constituting the inner layer is usually
  • Tg of outer layer is usually 20 ⁇ 100 ° C (preferably 30 ⁇ 90 ° C).
  • Tg of acrylic resin of each layer is this within such a range, the above-described effects can be stably obtained, and Tg in the present invention is a value determined by Fox's formula.
  • the component (A) contains a carboxyl group-containing acrylic resin
  • a compound capable of reacting with a carboxyl group is separately added to prevent swelling, anti-peeling, and washing resistance. Etc. can be enhanced. In addition, the tackiness of the coating surface is reduced, and the water resistance and stain resistance are increased.
  • a reactive compound having an epoxy group is particularly suitable.
  • the reactive compound having an epoxy group includes, for example, ethylene glycol diglycidinoate ethere, polyethylene glycol diglycidyl ether, propylene glycol diglycidyl ether, polypropylene glycol diglycidyl ether, glycerol polyglycidyl ether, diglycerol.
  • Polyglycidyl ether, polyglycerol polyglycol Examples thereof include shizino reetenole, diglyceronole polyglycidino reetenole, polyhydroxylolecan polyglycidyl ether, sorbitol polyglycidyl ether and the like.
  • a water-soluble resin or emulsion made of a polymer (homopolymer or copolymer) of an epoxy group-containing monomer can also be used.
  • the mixing amount of such a compound is usually 0.1 to 50 parts by weight, preferably 0.3 to 20 parts by weight, based on 100 parts by weight of the resin solid content of the component (A).
  • the component (A) is used as a binder, but a binder other than the component (A) can be used in combination with the component (A).
  • a binder for example, synthetic resin emulsions other than the component (A), various water-soluble resin, and the like can be used. These may have crosslinking reactivity.
  • usable types of resin include cellulose, polybulal alcohol, acetate acetate resin, alkyd resin, chlorinated resin, epoxy resin, silicone resin, acrylic resin, urethane resin, acrylic resin Examples thereof include silicon resin, fluorine resin, and a composite system thereof.
  • the mixing ratio of the component (A) and the other binder is usually about 95: 5 to 20:80 (preferably 90:10 to 30:70) in terms of solid content!
  • crosslinking reaction type synthetic resin emulsion When a crosslinking reaction type synthetic resin emulsion is used as a binder other than the component (A), physical properties such as water resistance and antifouling properties can be further enhanced.
  • the crosslinking reaction in such a crosslinking reaction type synthetic resin emulsion include a hydroxyl group and an isocyanate group, a carbonyl group and a hydrazide group, a carboxyl group and a metal ion, an epoxy group and an amino group, an epoxy group and a carboxyl group, an epoxy group and a hydrazide group.
  • a crosslinking reaction type emulsion a crosslinking reaction as exemplified here may be generated in the emulsion particles, and a crosslinking reaction is generated between the emulsion particles and the crosslinking agent. May be.
  • the mixing ratio of the component (A) and the crosslinking reaction type synthetic resin emulsion is usually 95: 5 to 20:80 (preferably 90:10 to 30:70) in terms of solid content. It is desirable to make it about.
  • the above-mentioned compound capable of reacting with a carboxyl group and such a cross-linking reaction type synthetic resin emulsion are used. Chillon can be used together.
  • a granular material having an average particle size of 0.5 to 500 ⁇ m and an oil absorption of 60 mlZ lOOg or less (B) (hereinafter referred to as “component (B)” t ⁇ ⁇ ) Is added as an essential component, and the component (B) is blended within a range where the facial volume concentration is 10 to 90%.
  • component (B) by blending the component (B) in this way, a fine uneven structure is imparted to the surface of the formed coating film, and the contact area when water droplets come into contact with the coating film can be reduced. Excellent water repellent effect can be obtained.
  • the range of a suitable average particle diameter in the component (B) is 1 to 200 / ⁇ ⁇ (more preferably 2 to: L00 m, and further preferably 3 to 80 / ⁇ ⁇ ).
  • the average particle diameter of the component (ii) is outside the above range, it is difficult to obtain a sufficient effect in water repellency. Specifically, when the average particle size of the component (ii) is too large, the surface of the coating film becomes too rough, and water may enter the coating film. If the average particle size is too large, it becomes difficult to form a fine concave-convex structure that contributes to improving water repellency.
  • the average particle diameter of the component ( ⁇ ) is based on observation with a transmission electron microscope, and is a value obtained by determining the particle diameter distribution (number basis) when the equivalent circle diameter of each particle is the diameter. is there.
  • the oil absorption of the component (ii) is 60 mlZl00 g or less, preferably 40 mlZl00g or less, more preferably 20 mlZl00g or less.
  • the oil absorption (ml / 100g) is the value obtained by the method specified in JIS K 5101-13-2: 2004, and is expressed in ml of boiled ama oil to lOOg of granular material. Is.
  • the component (B) in the present invention is not particularly limited as long as the above physical properties are satisfied, and various powders can be used. Examples include heavy calcium carbonate, kaolin, clay, clay, china clay, talc, nolite powder, barium sulfate, barium carbonate, magnesium carbonate, silica powder, and aluminum hydroxide.
  • the component (B) two or more kinds of powders having different average particle diameters can be used in combination.
  • the granular material (B) preferably has a non-spherical shape such as a rectangular shape, a needle shape, an irregular shape, a flake shape, etc. It is preferable to include. Among these, specific examples of the flake-shaped material include talc, my strength, clay, and the like. Further, the content of the flakes in the granular material (B) can be 10% by volume, preferably 20% by volume, more preferably 30% by volume.
  • Component (B) in the coating agent of the present invention is mixed within a range in which the pigment volume concentration is 10 to 90% (preferably 20 to 80%, more preferably 25 to 70%).
  • the pigment volume concentration is 55% or more, while emphasizing the improvement of sealing property (low water permeability) and prevention of contamination.
  • the pigment volume concentration is preferably less than 55%.
  • the pigment volume concentration of the component (B) in the present invention is the volume percentage of the component (B) contained in the dry coating film, and is determined by calculating the compounding force of the binder constituting the coating agent and the component (B). Value.
  • the average particle size of the color pigment is usually less than 0.5 ⁇ m (preferably 0.4 ⁇ m or less).
  • the pigment volume concentration of the entire coating agent in the coating agent of the present invention is 40 to 90%.
  • the pigment volume concentration is preferably 60% or more, while improving sealability (low water permeability) and preventing contamination. If importance is attached, the pigment volume concentration is preferably less than 60%.
  • the pigment volume concentration of the entire coating agent is the volume percentage of the whole powder and granule contained in the dry coating film, and is determined from the amount of the binder and the powder constituting the coating agent (including paint). This is a value obtained by calculation.
  • the coating agent of the present invention may contain components that can be used in ordinary paints as long as the effects of the present invention are not significantly impaired.
  • examples of such components include thickeners, film-forming aids, leveling agents, wetting agents, plasticizers, antifreezing agents, pH adjusting agents, antiseptics, antifungal agents, algaeproofing agents, and antibacterial agents. , Dispersants, antifoaming agents, adsorbents, aggregates, fibers, water repellents, crosslinking agents, ultraviolet absorbers, antioxidants, catalysts and the like.
  • the coating agent of this invention can be manufactured by mixing the above components uniformly by a conventional method.
  • the coating agent of the present invention can be used mainly for coating such as painting of buildings and civil engineering structures.
  • Applicable base materials include, for example, gypsum board, plywood, concrete, mortar, porcelain tile, fiber mixed cement board, cement silicate calcium board, slag cement pearlite board, ALC board, siding board, extrusion board, steel sheet And a plastic plate.
  • the surface of these base materials may be any surface treatment (for example, a sealer, a surfacer, a filler, a putty, etc.) or a coating film already formed.
  • the adhesion of the coating agent of the present invention to the substrate can be enhanced by applying a primer such as a sealer or a surfacer to the surface of the substrate. Furthermore, the external force can reliably suppress the intrusion of water into the base material.
  • a primer such as a sealer or a surfacer
  • the external force can reliably suppress the intrusion of water into the base material.
  • the water-repellent performance of the coating agent of the present invention can be stably demonstrated over a long period of time, and a stable effect can be obtained even if it is waterproof.
  • binder in the undercoat material examples include various types of binders such as water-soluble resin, water-dispersible resin (resin emulsion), solvent-soluble resin, solvent-free resin, and non-water-dispersed resin. It is possible to use a material or a binding material obtained by combining these materials. In the present invention, water-soluble rosin and Z or water-dispersible rosin are preferred. These may have crosslinking reactivity. Further, the form of the binder is not particularly limited, and may be either a one-component type or a two-component type.
  • resin examples include, for example, vinyl acetate resin, vinyl chloride resin, epoxy resin, silicone resin, acrylic resin, urethane resin, acrylic silicon resin, fluorine resin Or a composite system of these.
  • the above component (A), further the component (A-1), etc. can also be used as the binder for the primer.
  • the pigment volume concentration of the undercoat material is preferably set lower than the pigment volume concentration of the coating agent of the present invention. Specifically, it is desirable that the pigment volume concentration of the primer is usually set to about 60% or less (preferably 50% or less, more preferably 40% or less). When the pigment volume concentration of the primer is within such a range, advantageous effects in adhesion, waterproofness, and the like can be obtained.
  • a method for applying the undercoat material a known method can be employed, and for example, spray coating, roller coating, brush coating, and the like are possible.
  • Coat-weight of the primer material in the case of sealer usually 0. 05 ⁇ 0. 3kgZm 2 mm, in the case of Safuesa one is usually 0. 3 ⁇ 2kgZm 2 extent.
  • As the undercoat material it is sufficient to apply only one type, but it is possible to apply two or more types.
  • a coating film exhibiting excellent water repellency can be obtained by applying the coating agent of the present invention to the substrate as described above.
  • a coating film having a contact angle with water of 110 ° or more preferably 120 ° or more, more preferably 130 ° or more, and further preferably 140 ° or more
  • the contact angle mentioned here is the value of the static contact angle measured with a contact angle meter.
  • a coating method of the coating agent of the present invention a known method can be employed, and for example, spray coating, roller coating, brush coating, and the like are possible.
  • spray coating, roller coating, brush coating, and the like are possible.
  • dry building materials are painted in the factory, they can also be painted using a roll coater or flow coater. Since the coating agent of the present invention has good wettability with respect to the base material, there is an advantage that defects such as repellency are less likely to occur during painting.
  • Coating with the amount at the time of painting the coating agent of the present invention may be appropriately selected depending on the type and application of the coating agent (including coating), it is usually at 0. 05-0. 5kgZm 2 about .
  • the coating agent of the present invention can be overcoated several times. Further, at the time of application, the viscosity of a coating agent such as paint can be appropriately adjusted by diluting with water or the like. The dilution ratio is usually about 0 to 20% by weight. Drying after applying the coating agent of the present invention is usually carried out at room temperature, but can also be heated.
  • various uneven patterns can be formed by appropriately selecting the type of coating equipment and the method of use thereof.
  • a porous roller, a design roller having various uneven shapes on the roller surface, or the like can be used as the coating device in this case.
  • a concavo-convex pattern can be formed by treating the coated surface with a design roller, a brush, a comb, a spatula or the like until the coating agent such as paint is dried.
  • a concavo-convex pattern is imparted to the coating film, dirt tends to accumulate in the concave portions of the coating film, but in the coating film formed by the coating agent of the present invention, such concave portions are easily stained. Can be removed.
  • a coating agent (paint) was produced by mixing and stirring each raw material by a conventional method. The following were used as raw materials.
  • Inner layer acrylic resin (Tg—50 ° C, component: n-butyl methacrylate, n-butyl methacrylate, 2-ethylhexyl acrylate),
  • Inner layer Acrylic resin (Tg—50 ° C, component: n-butyl methacrylate, n-butyl methacrylate, 2-ethylhexyl acrylate), silicone resin (component: hexamethylcyclotrisiloxane, ota Tamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, ⁇ -methacryloyloxypropyltrimethoxysilane), inner layer acrylic resin and inner layer silicone resin 92: 8,
  • Inner layer Acrylic resin (Tg—50 ° C, component: n-butyl methacrylate, n-butyl methacrylate, 2-ethylhexyl acrylate), silicone resin (component; hexamethylcyclotrisiloxane, ota Tamethylcyclotetrasiloxane, decamethylcyclopentasiloxane), inner layer acrylic resin and inner layer silicone resin 55:45, Weight ratio of outer layer to inner layer 45:55, solid content 50% by weight.
  • silicone resin component: hexamethylcyclotrisiloxane, otamethylcyclotetrasiloxane, decamethylcyclopentasiloxane
  • Inner layer acrylic resin (Tg—50 ° C, component: n-butyl methacrylate, n-butyl methacrylate, 2-ethylhexyl acrylate),
  • 'Oxal 7 Acrylic Oxidation Emulsion (Tgl2 ° C, component; t-butyl methacrylate, n-butyl methacrylate, n-butyl acrylate, 2-ethyl hexyl acrylate, methacrylate A solid content of 50% by weight).
  • 'Oxalate 8 Cross-linking reaction type acrylic resin emulsion (Tg20 ° C, component: methyl methacrylate, styrene, 2-ethylhexyl acrylate, diacetone acrylamide, acrylic acid, cross-linking agent; adipine Acid dihydrazide, solid content 50 wt%).
  • Crosslinking agent Epoxy group-containing compound (polyhydroxyalkane polyglycidyl ether) • Granule 1: Silica powder (average particle size 18 m, oil absorption 10 ml ZlOOg, specific gravity 2.7) • Granule 2: silica Powder (average particle size 4 m, oil absorption 10 mlZlOOg, specific gravity 2.7) • Granules 3: Silica powder (average particle size 72 m, oil absorption 10 mlZlOOg, specific gravity 2.7) • Granules 4: talc (average Particle size 12m, oil absorption 35mlZlOOg, specific gravity 2.7)
  • 'Powder 5 Diatomaceous earth (average particle size 9 / z m oil absorption 170mlZl00g, specific gravity 2.3)
  • Titanium oxide average particle size 0.2 / ⁇ ⁇ , oil absorption 13mlZlOOg, specific gravity 4.2
  • Coloring pigment 2 Fast yellow 10G (average particle size 0.2 / ⁇ ⁇ , oil absorption 40mlZl
  • Dispersant Polycarboxylic acid dispersant (solid content 30% by weight)
  • Antifoaming agent Silicone defoaming agent (solid content 50% by weight)
  • Aluminum plate is sprayed with an epoxy resin primer (pigment volume concentration 0%, the same applies below) at a coating amount of 0. lkgZm 2 and temperature 23 ° C 'relative humidity 50% After drying for 8 hours under the following conditions (hereinafter referred to as standard conditions), the water-based paint obtained by the above method (manufactured the next day) is diluted 10% with water and spray-coated at a coating weight of 0.2 kgZm 2 to achieve the standard condition.
  • the test specimen was dried for 14 days. 0.2 cc of deionized water was dropped on the coating surface of the test specimen, and the contact angle immediately after dropping was measured with a CA-A type contact angle measuring device manufactured by Kyowa Interface Science Co., Ltd.
  • Epoxy resin primer is spray-coated at 0.1 kgZm 2 on an 8 mm aluminum plate, dried for 8 hours in the standard condition, and then water-based paint obtained by the above method (Product on the next day of manufacture) was diluted 10% with water and spray-coated with a coating amount of 0.2 kgZm 2 and dried for 14 days in a standard state as a test specimen.
  • the test specimen was tilted 15 degrees with respect to the horizontal plane, and when the deionized water was continuously dropped onto the coating film surface of the test specimen, the state of water drop sliding and the presence or absence of a water drop trace after dropping were visually observed.
  • the evaluation standard is ⁇ ⁇ '' when the water droplet slips into a spherical shape and the water droplet mark remains, and the water droplet slides into a spherical shape and almost no water mark remains. “ ⁇ ” for water droplets, “ ⁇ ” for water droplets that remained in a spherical shape, and “X” for water droplets that did not slide in a spherical shape.
  • the water-based paint obtained by the above method was sealed in a container and stored in a 50 ° C incubator for 7 days, and then the test was performed in the same manner.
  • the evaluation criteria are ⁇ ⁇ '' when the defect area is less than 5%, ⁇ ⁇ '' when the defect area is 5% or more and less than 15%, and ⁇ ⁇ '' when the defect area is 15% or more and less than 35% “,” And “X” indicates that the defect area is 35% or more.
  • Evaluation criteria are based on checking the degree of occurrence of anomalies (cracking 'swelling' and peeling). ⁇ indicates that no anomaly has occurred and ⁇ indicates that no anomaly has occurred. “ ⁇ ” indicates that the abnormality occurred partially and “X” indicates that the abnormality occurred significantly. [0072] (6) Water repellent durability test
  • Aluminum plate is spray-coated with epoxy resin primer at a coating weight of 0.1 kgZm 2 and dried for 8 hours under standard conditions.
  • the test specimens were 10% diluted and spray-coated at a coating weight of 0.2 kgZm 2 and dried for 14 days under standard conditions.
  • 0.2 cc of deionized water was dropped onto the coating surface of this test specimen, and the contact angle immediately after dropping was measured with a CA-A type contact angle measuring device manufactured by Kyowa Interface Science Co., Ltd. 7 pieces.
  • test specimen was immersed in water at 23 ° C for 3 hours, dried for 1 hour in a standard state, and then the contact angle was measured in the same manner.
  • the evaluation criteria are “ ⁇ ” when the contact angle drop after water immersion is less than 5 degrees, “ ⁇ ” when the contact angle is less than 5 degrees and less than 10 degrees, “X”.
  • a test specimen was prepared in the same manner as in the contamination prevention test 1, and the black rubber was rubbed against the coating film surface of the specimen, and then wiped with water. The state of the coating film surface at this time was evaluated based on the same criteria as in the above-mentioned contamination prevention test 1.
  • the test specimen was diluted 10%, spray-coated at a coating weight of 0.2 kgZm 2 and cured for 14 days.
  • the water permeability of the obtained specimen was measured according to the procedure of JIS A 6909 7.13 “Water permeability test B method”.
  • the evaluation criteria were “ ⁇ ” if the water permeability was less than 0.2 ml, (). “ ⁇ ” if more than 2 ml but less than 0.5 ml, “ ⁇ ” if more than 0.5 ml but less than 1 ml, and “X” if more than 1 ml.
  • Aluminum plate is spray-coated with epoxy resin primer at a coating weight of 0.1 kgZm 2 and dried for 8 hours under standard conditions.
  • the test specimens were 10% diluted and spray-coated at a coating weight of 0.2 kgZm 2 and dried for 14 days under standard conditions.
  • This test specimen was exposed for 320 hours with an accelerated weathering tester (“Metal Weather Meter”, manufactured by Dybra Windes Co., Ltd.), and the appearance of the coated film was visually confirmed after exposure. did .
  • the evaluation criteria were “X” when no abnormality (cracking, peeling, swelling, etc.) was observed in the coating film, and “X” when abnormality was recognized.
  • 0.2 cc of deionized water was dropped onto the exposed coating surface, and the contact angle immediately after dropping was measured with a CA-A type contact angle measuring device manufactured by Kyowa Interface Science Co., Ltd.
  • Test Example 19 in each of the tests (1) to (8) above, the epoxy resin-based primer was used. Instead, the paint of Test Example 4 was used, and the specification using the paint of Test Example 2 as a water-based paint was tested.
  • a 150 x 70 x 3 mm slate plate was sprayed with an epoxy resin primer at a coating weight of 0.1 kg / m 2 and dried for 8 hours in the standard state. It was painted with the short hair roller in coat-weight 0. lkgZm 2 was diluted 10% with water. After drying for 2 hours, the water-based paint from Test Example 6 (the product on the next day of manufacture) was applied without dilution, using a porous roller at a coating amount of 0.35 kgZm 2 , and immediately after the design roller (lattice irregularities on the roller surface) Concavities and convexities were formed on the coated surface using After that, the specimens cured for 14 days were used as test specimens. This specimen was subjected to a pollution prevention test in the same manner as in the above pollution prevention tests 1 to 4.
  • test Example 17 (product the day after manufacture) It was painted with the short hair roller in coat-weight 0. lkgZm 2 was diluted 10% with water. After drying for 2 hours, the water-based paint of Test Example 17 (the product on the next day of production) was applied without dilution with a porous roller at a coating amount of 0.35 kg / m 2 , and immediately the design roller (lattice on the roller surface) The surface of the coating was uneven. Thereafter, the specimens cured for 14 days were used as test specimens. This test specimen was subjected to a pollution prevention test in the same manner as in the above pollution prevention tests 1 to 4.
  • test results are shown in Tables 3-4. In Test Examples 1 to 13 and Test Examples 19 to 20, excellent results could be obtained in any of the tests.
  • the parenthesis shows the pigment volume concentration of each powdered body (%)
  • the parenthesis ⁇ is the pigment volume concentration (%) of each granular material

Abstract

L’invention concerne un agent d’enrobage contenant essentiellement une émulsion (A) de résine synthétique et une poudre (B). Dans chaque particule d’émulsion de ladite émulsion (A) coexistent une résine acrylique contenant un (méth)acrylate d’alkyle en tant que composant monomère principal et une résine de silicone contenant un composé siloxane cyclique en tant que composant monomère principal, suivant un rapport pondéral variant de 99:1 à 30:70. La poudre (B) a un diamètre particulaire moyen de 0,5 à 500 μm et une capacité d’absorption d’huile n’excédant pas 60 ml/100 g. L’agent d’enrobage est également caractérisé en ce que la poudre (B) a une concentration volumique en pigments allant de 10 à 90 %. Dans la mesure où la résistance à l’eau dudit agent d’enrobage ne diminue pas au cours du stockage ou après la formation d’un film d’enrobage, cet agent fait preuve de performances de résistance à l’eau excellentes et stables.
PCT/JP2006/326082 2005-12-27 2006-12-27 Agent d’enrobage WO2007077879A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP2007524103A JP4085399B2 (ja) 2005-12-27 2006-12-27 コーティング剤
CN2006800491990A CN101346445B (zh) 2005-12-27 2006-12-27 涂布剂
US12/158,475 US8143342B2 (en) 2005-12-27 2006-12-27 Coating agent
HK09103174.3A HK1123822A1 (en) 2005-12-27 2009-04-03 Coating agent

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
JP2005-376037 2005-12-27
JP2005376037 2005-12-27
JP2006-232845 2006-08-29
JP2006232845 2006-08-29
JP2006331220 2006-12-07
JP2006-331220 2006-12-07

Publications (1)

Publication Number Publication Date
WO2007077879A1 true WO2007077879A1 (fr) 2007-07-12

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2006/326082 WO2007077879A1 (fr) 2005-12-27 2006-12-27 Agent d’enrobage

Country Status (8)

Country Link
US (1) US8143342B2 (fr)
JP (2) JP4085399B2 (fr)
KR (1) KR101005477B1 (fr)
CN (1) CN101346445B (fr)
HK (1) HK1123822A1 (fr)
MY (1) MY148292A (fr)
TW (1) TW200740933A (fr)
WO (1) WO2007077879A1 (fr)

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JP2008012455A (ja) * 2006-07-06 2008-01-24 Sk Kaken Co Ltd 塗膜形成方法
JP2008012454A (ja) * 2006-07-06 2008-01-24 Sk Kaken Co Ltd 塗装方法
JP2009249414A (ja) * 2008-04-02 2009-10-29 Aica Kogyo Co Ltd 塗材組成物
JP2009263425A (ja) * 2008-04-22 2009-11-12 Aica Kogyo Co Ltd 水系塗材組成物
JP2009263426A (ja) * 2008-04-22 2009-11-12 Aica Kogyo Co Ltd 水系仕上材組成物
JP2013001778A (ja) * 2011-06-15 2013-01-07 Atomix Co Ltd 防水材及び防水層の改修方法
JP2014005316A (ja) * 2012-06-21 2014-01-16 Atomix Co Ltd 落書き対策水性塗料
JP2014189580A (ja) * 2013-03-26 2014-10-06 Kansai Paint Co Ltd 遮熱性艶消し水性塗料組成物及び遮熱性艶消し塗膜形成方法
JP2014196401A (ja) * 2013-03-29 2014-10-16 関西ペイント株式会社 遮熱性艶消し水性塗料組成物及び遮熱性艶消し塗膜形成方法
JP2016040349A (ja) * 2014-08-12 2016-03-24 関西ペイント株式会社 耐汚染性艶消し水性塗料組成物及び耐汚染性艶消し塗膜形成方法
JP2019038909A (ja) * 2017-08-24 2019-03-14 ベック株式会社 水性被覆材
JP2019063779A (ja) * 2017-10-05 2019-04-25 ベック株式会社 被膜形成方法
JP2022022502A (ja) * 2020-06-24 2022-02-07 アイカ工業株式会社 壁面に意匠性を付与する水系塗材組成物

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JP2007268386A (ja) * 2006-03-30 2007-10-18 Sk Kaken Co Ltd 塗装方法
JP2007268498A (ja) * 2006-03-31 2007-10-18 Sk Kaken Co Ltd 塗膜形成方法
JP2008012455A (ja) * 2006-07-06 2008-01-24 Sk Kaken Co Ltd 塗膜形成方法
JP2008012454A (ja) * 2006-07-06 2008-01-24 Sk Kaken Co Ltd 塗装方法
JP2009249414A (ja) * 2008-04-02 2009-10-29 Aica Kogyo Co Ltd 塗材組成物
JP2009263425A (ja) * 2008-04-22 2009-11-12 Aica Kogyo Co Ltd 水系塗材組成物
JP2009263426A (ja) * 2008-04-22 2009-11-12 Aica Kogyo Co Ltd 水系仕上材組成物
JP2013001778A (ja) * 2011-06-15 2013-01-07 Atomix Co Ltd 防水材及び防水層の改修方法
JP2014005316A (ja) * 2012-06-21 2014-01-16 Atomix Co Ltd 落書き対策水性塗料
JP2014189580A (ja) * 2013-03-26 2014-10-06 Kansai Paint Co Ltd 遮熱性艶消し水性塗料組成物及び遮熱性艶消し塗膜形成方法
JP2014196401A (ja) * 2013-03-29 2014-10-16 関西ペイント株式会社 遮熱性艶消し水性塗料組成物及び遮熱性艶消し塗膜形成方法
JP2016040349A (ja) * 2014-08-12 2016-03-24 関西ペイント株式会社 耐汚染性艶消し水性塗料組成物及び耐汚染性艶消し塗膜形成方法
JP2019038909A (ja) * 2017-08-24 2019-03-14 ベック株式会社 水性被覆材
JP7023067B2 (ja) 2017-08-24 2022-02-21 ベック株式会社 水性被覆材
JP2019063779A (ja) * 2017-10-05 2019-04-25 ベック株式会社 被膜形成方法
JP2022022502A (ja) * 2020-06-24 2022-02-07 アイカ工業株式会社 壁面に意匠性を付与する水系塗材組成物

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CN101346445B (zh) 2012-07-04
US20090264579A1 (en) 2009-10-22
HK1123822A1 (en) 2009-06-26
KR101005477B1 (ko) 2011-01-05
JP4085399B2 (ja) 2008-05-14
KR20080068119A (ko) 2008-07-22
MY148292A (en) 2013-03-29
JP2008163310A (ja) 2008-07-17
JPWO2007077879A1 (ja) 2009-06-11
US8143342B2 (en) 2012-03-27
TW200740933A (en) 2007-11-01
CN101346445A (zh) 2009-01-14
JP5004229B2 (ja) 2012-08-22

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